In my case, the T65RR model, as I understand it, is tailored purely for the Chinese market. When you change the location, problems begin with the application and the plug-in for the vacuum cleaner. But I managed to solve it thanks to the gurus from the site "four PDAs" (it is clear that everyone is with crutches). There is a lot of information there, though everything is a mess. For the European market, there is a model S650-00 (the one that is written as S6)! What problems may arise when setting up this model - I don’t know! But I recommend that you pay attention to this before buying. Make sure that the application is installed, the device is connected and that it works correctly. The rest of the device is great! Due to the specifics of my household activities, a lot of dust is generated, I took it purely with the intention of minimizing the time for cleaning - I was tired of doing weekly general cleaning. Copes with tasks with a bang. Containers with liquid (650 ml) are enough for two rooms, a corridor and a kitchen (~45 m * m). Removes 45 minutes (1 m * m in 1 min)